<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>小黑账单综合应用</title>
    <!-- CSS only -->
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
    />
    <style>
      .red {
        color: red !important;
      }
      .search {
        width: 300px;
        margin: 20px 0;
      }
      .my-form {
        display: flex;
        margin: 20px 0;
      }
      .my-form input {
        flex: 1;
        margin-right: 20px;
      }
      .table > :not(:first-child) {
        border-top: none;
      }
      .contain {
        display: flex;
        padding: 10px;
      }
      .list-box {
        flex: 1;
        padding: 0 30px;
      }
      .list-box a {
        text-decoration: none;
      }
      .echarts-box {
        width: 600px;
        height: 400px;
        padding: 30px;
        margin: 0 auto;
        border: 1px solid #ccc;
      }
      tfoot {
        font-weight: bold;
      }
      @media screen and (max-width: 1000px) {
        .contain {
          flex-wrap: wrap;
        }
        .list-box {
          width: 100%;
        }
        .echarts-box {
          margin-top: 30px;
        }
      }
    </style>
  </head>
  <body>
    <div id="app">
      <div class="contain">
        <!-- 左侧列表 -->
        <div class="list-box">
          <!-- 添加资产 -->
          <form class="my-form">
            <input
              v-model.trim="name"
              type="text"
              class="form-control"
              placeholder="消费名称"
            />
            <input
              v-model.number="price"
              type="text"
              class="form-control"
              placeholder="消费价格"
            />
            <button @click="add" type="button" class="btn btn-primary">
              添加账单
            </button>
          </form>

          <table class="table table-hover">
            <thead>
              <tr>
                <th>编号</th>
                <th>消费名称</th>
                <th>消费价格</th>
                <th>操作</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="(item,index) in list" :key="item.id">
                <td>{{index+1}}</td>
                <td>{{item.name}}</td>
                <td :class="{red:item.price>50}">{{item.price.toFixed(2)}}</td>
                <td>
                  <a href="javascript:;" @click="deleteBill(item.id)">删除</a>
                </td>
              </tr>
            </tbody>
            <tfoot>
              <tr>
                <td colspan="4">消费总计： {{totalPrice.toFixed(2)}}</td>
              </tr>
            </tfoot>
          </table>
        </div>

        <!-- 右侧图表 -->
        <div class="echarts-box" id="main"></div>
      </div>
    </div>
    <script src="../js/echarts.min.js"></script>
    <script src="../js/vue.js"></script>
    <script src="../js/axios.min.js"></script>
    <script>
      /**
       * 接口文档地址：
       * https://www.apifox.cn/apidoc/shared-24459455-ebb1-4fdc-8df8-0aff8dc317a8/api-53371058
       *
       * 功能需求：
       * 1. 基本渲染
       * 2. 添加功能
       * 3. 删除功能
       * 4. 饼图渲染
       */
      const app = new Vue({
        el: "#app",
        data: {
          list: [],
          name: "",
          price: "",
        },
        computed: {
          totalPrice() {
            return this.list.reduce((sum, item) => (sum += item.price), 0);
          },
        },
        async created() {
          // const res = await axios.get(
          //   "https://applet-base-api-t.itheima.net/bill",
          //   {
          //     params: {
          //       creator: "张三",
          //     },
          //   }
          // );
          // this.list = res.data.data;
          this.getList();
        },
        methods: {
          async getList() {
            const res = await axios.get(
              "https://applet-base-api-t.itheima.net/bill",
              {
                params: {
                  creator: "张三",
                },
              }
            );
            this.list = res.data.data;

            //更新图标
            this.myChart.setOption({
              series: [{
                data: 
                 //下面 ( ) 括号包裹  map返回对象时 需要用到
                 this.list.map(item=>({name: item.name,value: item.price}))


                 //等同 上放代码
                // this.list.map(item=>{
                //    return {
                //     name: item.name,
                //     value: item.price,
                //   }
                // })
              }],
            });
          },
          async add() {
            if (!this.name) {
              alert("请输入消费名称");
              return;
            }
            if (typeof this.price !== "number") {
              alert("请输入消费价格");
              return;
            }
            const res = await axios.post(
              "https://applet-base-api-t.itheima.net/bill",
              {
                name: this.name,
                price: this.price,
                creator: "张三",
              }
            );
            this.list.unshift(res.data.data);

            //重新渲染
            this.getList();
            this;
          },
          async deleteBill(id) {
            const res = await axios.delete(
              `https://applet-base-api-t.itheima.net/bill/${id}`
            );
            this.list = this.list.filter((item) => item.id !== id);
            this.getList();
          },
        },
        mounted() {
          //初始化饼图
          this.myChart = echarts.init(document.getElementById("main"));
          // 指定图表的配置项和数据
          var option = {
            //大标题
            title: {
              text: "消费账单列表",
              left: "center",
            },
            //提示框
            tooltip: {
              trigger: "item",
            },
            //图例
            legend: {
              orient: "vertical",
              left: "left",
            },
            //数据
            series: [
              {
                name: "消费账单",
                type: "pie",
                radius: "50%", //饼图的半径
                //数据
                data: [],
                emphasis: {
                  itemStyle: {
                    shadowBlur: 10,
                    shadowOffsetX: 0,
                    shadowColor: "rgba(0, 0, 0, 0.5)",
                  },
                },
              },
            ],
          };

          // 使用刚指定的配置项和数据显示图表。
          this.myChart.setOption(option);
        },
      });
    </script>
  </body>
</html>
